1 / 4

High-Accuracy Noise Generator with DSP Implementation and Fixed-Point Arithmetic

This hardware implementation features ADSP-2181 DSP at 40MHz for digital noise generation and analog output through 14-bit, 300kHz D/A conversion. LabVIEW Solutions used for development offer easy upgrade in accuracy and speed. The system enables flexible 1/f α noise generation with limited precision and saturation algorithm interrupt. It allows for optimising filter coefficients with a focus on exploiting the numerical range efficiently. Features flexible control options: host computer controlled or stand-alone operation.

penelope-newton
Télécharger la présentation

High-Accuracy Noise Generator with DSP Implementation and Fixed-Point Arithmetic

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Hardware implementation • DSP: ADSP-2181, 16 bit, fixed point, 40MHz • D/A: 300kHz, 14 bit • PC: development environment: LabVIEW

  2. Solutions using fixed-point arithmetic } Need to optimise the coefficients of the filters to exploit the available numerical range • Limited precision • Saturation

  3. Algorithm Interrupt Random number Filters D/A conversion Return

  4. Features • Flexible 1/f α noise generator • Digital noise generation (DSP) • Analog output (D/A conversion) • Stand-alone or host computer controlled • High accuracy • Easy upgrade in speed, accuracy

More Related